| n. | 1. | The act of adjusting to a line; arrangement in a line or lines; the state of being so adjusted; a formation in a straight line; also, the line of adjustment; esp., an imaginary line to regulate the formation of troops or of a squadron. |
| 2. | (Engin.) The ground-plan of a railway or other road, in distinction from the grades or profile. |
| Noun | 1. | alignment - an organization of people (or countries) involved in a pact or treaty Antonyms: nonalignment, nonalinement - people (or countries) who are not aligned with other people (or countries) in a pact or treaty |
| 2. | alignment - the spatial property possessed by an arrangement or position of things in a straight line or in parallel lines | |
| 3. | alignment - (astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac Synonyms: conjunction | |
| 4. | alignment - the act of adjusting or aligning the parts of a device in relation to each other |